5Magnetic Oil Level Gauges - Ashish Engineering Oil Level Gauges.pdf · MOUNTING PAD & GASKET NOT...
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Magnetic Oil Level Gauges Magnetic Oil Level Gauges Magnetic Oil Level Gauges for electrical Transformers APPLICATION : SCOPE : CONSTRUCTION & WORKING : SPECIFICATIONS : This indicator is suitable for oil filled Pow er Transformers & oil filled tanks. Indicator continuously reads level inside the conservator and operates a microswitch when oil level drops near Empty level mark. The indicator has aluminium body with built in flange for mounting. To avoid leakage of oil and to avoid entry of contaminated air into tank, a pair of permanent magnets is used separated by a metallic wall. A float is used as sensor & is connected to driving magnet through a bevel gear. The driven magnet is positioned outside in air in main body which carries a pointer and a cam. The pointer is set to read the oil level and the cam is set to operate the switch near Empty level(See Schematic). Switch resets automatically when level of oil is brought to normal. Contacts of switch are brought outside in terminal box with threaded hole for fixing cable gland. The body of indicator with dial and switch is sealed to avoid entry of moist air. Hence switch is not accessible for resetting or servicing. Transformer oil & other oils. Temp. -30 to 1000 Cent. of oil. Press : 0 to 1 Kg/Cm2 Environment : Indoor or outdoor. To mount the indicator, buyer is required to provide a pad as per Fig. 4. The position can be selected on vertical wall of conservator/tank depending on importance of oil level readings and switching near Empty level. Dial Size : 100 & 150 mm round (nominal) Unit : Any calibration as per Customer’s requirement is possible. Colour : Black marking on white background or any other combination as required. Spread : Max 3000 (See Photograph). Float & Float - Arm are made of brass. Float - Arm is supplied of fixed Length or adjustable length type as per order. Leave Min. 65 mm beyond lower & higher limit markings to avoid striking of float to bottom & top of conservator. (See Fig.2) Type : Microswitch Contact Rating : See wiring diagram. (Fig. 5) Operation : See wiring diagram (Fig. 5) Liquid in tank : Working : Mounting : Calibration : Float (sensor) and arm : Margin : Switch : OIL LEVEL INDICATOR Fill Level EMPTY FULL M.O.G ASHISH ENGINEERING C 3/4 1/4 1/2 0 30 C Vadodara-Gujarat-India E-mail : [email protected] ROUTINE TESTS : HOW TO ORDER : Each indicator is tested for 1. Specified levels. 2. Switch operation 3. HV Test 4. Leakage Test. A combined test certificate is issued for each batch. We provide a Questionnaire for specifying your requirements. However, a drawing is acceptable giving all specifications. OIL LEVEL INDICATOR - 13MOG4001 Series-13MOG4011 Dial 4” & one Reed switch. Series-13MOG4013 Dial 4” & one Reed switch. Series-13MOG4015 Dial 6” & one Reed switch. Date : May 2012 Technology Develop with ERDA
Transcript of 5Magnetic Oil Level Gauges - Ashish Engineering Oil Level Gauges.pdf · MOUNTING PAD & GASKET NOT...
Magnetic Oil Level GaugesMagnetic Oil Level Gauges
Magnetic Oil Level Gauges for electrical Transformers
APPLICATION :
SCOPE :
CONSTRUCTION & WORKING :
SPECIFICATIONS :
This indicator is suitable for oil filled Pow er Transformers & oil filled tanks.
Indicator continuously reads level inside the conservator and operates a microswitch when oil level drops near Empty level mark.
The indicator has aluminium body with built in flange for mounting. To avoid leakage of oil and to avoid entry of contaminated air into tank, a pair of permanent magnets is used separated by a metallic wall. A float is used as sensor & is connected to driving magnet through a bevel gear. The driven magnet is positioned outside in air in main body which carries a pointer and a cam. The pointer is set to read the oil level and the cam is set to operate the switch near Empty level(See Schematic). Switch resets automatically when level of oil is brought to normal. Contacts of switch are brought outside in terminal box with threaded hole for fixing cable gland. The body of indicator with dial and switch is sealed to avoid entry of moist air. Hence switch is not accessible for resetting or servicing.
Transformer oil & other oils.
Temp. -30 to 1000 Cent. of oil. Press : 0 to 1 Kg/Cm2 Environment : Indoor or outdoor.
To mount the indicator, buyer is required to provide a pad as per Fig. 4. The position can be selected on vertical wall of conservator/tank depending on importance of oil level readings and switching near Empty level.
Dial Size : 100 & 150 mm round (nominal) Unit : Any calibration as per Customer’s requirement is possible. Colour : Black marking on white background or any other combination as required. Spread : Max 3000 (See Photograph).
Float & Float - Arm are made of brass. Float - Arm is supplied of fixed Length or adjustable length type as per order.
Leave Min. 65 mm beyond lower & higher limit markings to avoid striking of float to bottom & top of conservator. (See Fig.2)
Type : Microswitch Contact Rating : See wiring diagram. (Fig. 5)
Operation : See wiring diagram (Fig. 5)
Liquid in tank :
Working :
Mounting :
Calibration :
Float (sensor) and arm :
Margin :
Switch :
OIL LEVEL INDICATOR
Fill Level
EMPTY FULL
M.O.G
ASHISH ENGINEERING
C
3/4
1/4
1/2030 C
Vadodara-Gujarat-IndiaE-mail : [email protected]
ROUTINE TESTS :
HOW TO ORDER :
Each indicator is tested for
1. Specified levels. 2. Switch operation 3. HV Test
4. Leakage Test.
A combined test certificate is issued for each batch.
We provide a Questionnaire for specifying your requirements. However, a drawing is acceptable giving all specifications.
OIL LEVEL INDICATOR - 13MOG4001
Series-13MOG4011 Dial 4” & one Reed switch.
Series-13MOG4013 Dial 4” & one Reed switch.
Series-13MOG4015 Dial 6” & one Reed switch.
Date : May 2012Technology Develop with ERDA
Magnetic Oil Level GaugesMagnetic Oil Level Gauges
6 & 8 STUDS, M 10 EQUALLY SPACEDAS SHOWN ON P.C.D.
MOUNTING PAD & GASKET NOT SUPPLIED BY SUKRUT
SECTION AT ‘A-A’
LEAKPROOFWELDING JOINT
HO
LE
IN
TA
NK
Ø 1
65
Ø 1
75
Ø 2
35
A
A
0
22.5AT NORMAL
LEVELAT MIN.LEVEL
CONTACT RATING 5A 240V AC, 0.25A 240 V DCSWITCH RESETS AUTOMATICALLY WHEN OIL LEVEL IS BROUGHT TO NORMAL
INTERNALWIRING
REEDSWITCH
EXTERNALWIRING
TERMINALPLATE
FIG. 4 MOUNTING PAD FIG. 5 MOUNTING PAD
OIL LEVELAT FULL
OIL LEVELAT EMPTY
MARGIN MIN 65
MARGIN MIN 65
0MAX 45
0MAX 45
FIG. 2 FLOAT TRAVEL
1 2 3 4 5
9 8 7 6
Patented
FIG. 1 SCHEMATIC Description
Pointer & dialReed switch & MagnetSwitch operating camReturn springGear & PinionFloatDriving MagnetNon-magnetic wallFollower magnet
1 -2 -3 -4 -5 -6 -7 -8 -9 -
Item
Date : May 2012Technology Develop with ERDA
Magnetic Oil Level GaugesMagnetic Oil Level Gauges
GENERAL NOTES :
1. Indicators of different specifications are not interchangeable. Hence care should be taken while
storing Indicators and their Float with Arms. This indicator can be used for vertical or inclined mounting
as per order.
2. Float & Indicator, loose or assembled, should be handled carefully as they cannot be repaired if
damaged.
3. The complaint of damage or demand for spares should be very specific with respect to Sr. No. of
indicator. Lot of correspondence and time can be saved just by informing Sr. No. of concerned
Indicator.
4. We continuously review specifications and where appropriate, introduce modifications. We,
therefore, reserve the right to change specifications in this catalogue without prior notice.
Sr. No. Description Material Qty.
1. Crystal Glass 1
2. Float Brass 1
3. Main Body Cast Al. 1
4. Limit Stoppers Al. Rod 2
Sr. No. Description Material Qty.
5. Lever with Gear Brass 1
6. Float Arm Plastic 1
7. Label with Sr. No. Allum. 1
8. Terminals Brass
PART LIST
3 5 4 2
6
8
ASHISH ENGINEERINGSERIAL NO.
W
T
D
G
Series
13MOG4011
13MOG4013
13MOG4015
D
127
127
233
W
60
62
51
T
15
19
13
G
20
20
17
P
165
127
210
H
6
4
8
d
12
12
12
kg.
1.1
1.45
2.65
Note : P=PCD, H=No. of holed=hole diya
OIL LEVEL INDICATOR
Fill Level
EMPTY FULL
M.O.G
ASHISH ENGINEERING
C
3/4
1/4
1/2030 C
Vadodara-Gujarat-IndiaE-mail : [email protected]
Date : May 2012Technology Develop with ERDA
7
1
Magnetic Oil Level GaugesMagnetic Oil Level Gauges
1
2
Patented
ON
ALARAM
OIL LEVEL INDICATOR
Fill Level
EMPTY FULL
M.O.G
ASHISH ENGINEERING
C
3/4
1/4
1/2030 C
Vadodara-Gujarat-IndiaE-mail : [email protected]
OIL LEVEL INDICATOR
Fill Level
EMPTY FULL
M.O.G
ASHISH ENGINEERING
C
3/4
1/4
1/2030 C
Vadodara-Gujarat-IndiaE-mail : [email protected]
Date : May 2012Technology Develop with ERDA
